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US 8,574,336 B2Granted
Ultrasonic degassing of molten metals
AssigneeSouthwire Company
InventorsVictor F. Rundquist, Kevin S. Gill
Life of this patent
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Abstract
Ultrasonic devices having an integrated purging gas delivery system are described, and such devices can be used to remove dissolved gasses and impurities from molten metals.
Claims17
A method for reducing an amount of a dissolved gas in a molten metal bath, the method comprising:
- operating an ultrasonic device in the molten metal bath, the ultrasonic device comprising:
- an ultrasonic transducer,
- an elongated probe comprising a first end and a second end, the first end attached to the ultrasonic transducer and the second end comprising a tip, and
- a purging gas delivery system, the purging gas delivery system comprising a purging gas inlet and a purging gas outlet,
- wherein the elongated probe comprises a ceramic, and the purging gas outlet is at the tip of the elongated probe;
- and
- introducing a purging gas into the molten metal bath through the purging gas outlet at the tip of the elongated probe.
4 more elements
Dependencies are inferred from the claim text.